1 files changed, 3 insertions, 0 deletions
diff --git a/src/ast/ast.cpp b/src/ast/ast.cpp
index 39250a41..df5f4d5a 100644
--- a/src/ast/ast.cpp
+++ b/src/ast/ast.cpp
@@ -175,6 +175,9 @@ Enum Enum::clone() const
 Struct Struct::clone() const
 {
     TU_MATCHA( (m_data), (e),
+    (Unit,
+        return Struct(m_params.clone());
+        ),
     (Tuple,
         decltype(e.ents)    new_fields;
         for(const auto& f : e.ents)